{"uid":"cap_EahGbuMOCzReWT-xPG82f","slug":"is-port-19-open-bulk-5c81e2b1","name":"is-port-19-open-bulk","description":"Bulk is port 19 open: up to 20 hosts in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.","url":"https://ip.intel.rallylive.ca/bulk/ip/port/19?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FsKXhAapASmouHhWPCYkU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether TCP port 19 (Chargen) is open on up to 20 hosts in a single concurrent batch call, returning ordered results with per-item error fields and a failure count.","exampleAgentPrompt":"Can you check whether port 19 is open on all 15 servers in my list — 198.51.100.1 through 198.51.100.15 — and tell me which ones have Chargen exposed?","exampleUseCases":[{"title":"Security audit for Chargen exposure","prompt":"I need to audit our infrastructure for exposed Chargen services — can you check if port 19 is open on these 12 hosts: 10.0.0.1, 10.0.0.2, 10.0.0.3, 10.0.0.4, 10.0.0.5, 10.0.0.6, 10.0.0.7, 10.0.0.8, 10.0.0.9, 10.0.0.10, 10.0.0.11, 10.0.0.12?"},{"title":"Detect amplification attack vectors","prompt":"I'm investigating potential DDoS amplification risks — check these 20 IP addresses for open port 19 and let me know which ones have Chargen running and if any checks failed."},{"title":"Pre-deployment network compliance check","prompt":"Before we go live, I need to confirm none of these 8 new server IPs have port 19 accidentally open — can you batch-check them and give me a clean pass/fail for each one?"}],"resultDescription":"An ordered array of per-host results matching the input order, each containing the host identifier, a boolean indicating whether port 19 is open, a per-item error field (null on success or an error message on failure), and an overall failure count summarizing how many hosts could not be checked.","failureModes":["Host unreachable or DNS resolution failure — per-item error field populated, failure count incremented","Timeout on connection attempt — item marked as error rather than closed","Input list exceeds 20 hosts — request rejected or truncated","Malformed host identifier in input — per-item error returned for that entry","Network-level firewall blocking the probe — port may appear closed even if open"],"whenToPreferThis":"Use this endpoint when you have a list of 2–20 hosts and need to check port 19 (Chargen) status for all of them efficiently in a single API call rather than making separate single-host requests. Ideal for batch enrichment pipelines, security audits, compliance checks, or agent workflows that accumulate a list of IPs and need concurrent port scanning with ordered, structured results and error isolation per item.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:43:25.679Z","isFirstParty":false,"canonicalSlug":"is-port-19-open-bulk-5c81e2b1"}